You might think by now, that there'll be plenty of data on effectiveness of each different one, given millions of doses administered.
Did read of a care home in Devon, Exmouth, where 11 residents have just all died and this despite having had first dose back in January.
So, either first dose not as good as we're told.
Or that it does indeed wear out (as manufacturers advised) unless 2nd dose is given three weeks or so later.
So so much wonderful effort being put in by thousands of health staff to vaccinate many many millions. I just hope that the route our government has taken in not following instructions isn't going to mess it all up.